Developer credits

Git commits in Moodle 2.3.x by Jamie Pratt

commit a24e35701ffc5a7e73243a9756aba27505f4fd2f
Author: Jamie Pratt <me@jamiep.org>
Date:   Thu, 15 Dec 2011 15:38:42 +0800
Tag:    v2.3.0-beta

MDL-30749 fixing typo referring to question instead of answer object